GNSS 接收机天线相位中心改正的影响分析

GNSS 接收机天线相位中心改正的影响分析

内容简介：GNSS天线相位中心改正包括天线相位中心偏差（ PCO）和天线相位中心漂移改正（ PCV）。 PCV随接收的卫星的高度角、方位角等而变化。在测量作业中，为将接收机天线的瞬时相位中心与实际测量应用联系起来，通常需要知道天线瞬时相位中心与天线量测参考点（ARP）之间的关系，并采用特定的模型进行PCV改正。本文介绍了GNSS接收机天线相位中心改正的相关模型与方法，结合具体算例分析了其对静态和实时数据的影响。

Abstract：The antenna phase center correction of GNSS receiver is consist of the phase center offset ( PCO) and the phase center variation(PCV).PCV is the difference from the instantaneous phase center to the average of antenna phase center and varies with the elevation and azimuth of the signal source .In order to geometrically relate the instantaneous phase center of the receiver antenna to the relevant survey monument ,we need to know the relationship between the in-stantaneous phase center and the physical antenna reference point (ARP) using the phase center variation (PCV) mod-el.This paper first describes the antenna phase center models and discussion of the PCV correction algorithm ,then dem-onstrates how the PCV model switch affects coordinate estimations of static and real -time surveying with processing of lo-cal engineering networks .

作者：张碧波, 李江卫, 熊佑祥, 孙伟,

关键词：GNSS天线, 相位中心偏差, 相位中心漂移, 天线参考点,